Means for regulating the feed to refuse-destructor and other furnaces.



H. N. LEASK. MEANS FOR REGULATING THE FEED T0 REFUSE DESTRUCTOR ANDOTHER FURNACES.

APPLICATION FILED DEC. 30. I910.

Patented July 27, 1915.

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MEANS'FOR REGULATING THE FEED T O REFUSE DESTRUCTOR AND OTHER FURNACES.-APPLICATION FILED DEC. 30. 1910.

EJ48 389 Patented July 27, 1915.

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H. N. LEASK.

MEANS FOR REGULATI NG THE FEED T0 REFUSE DESTRUCTOR AND OTHER FURNACES.APPLICATION man 05c. 30. 1910.

Patented July 27, 1915.

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HENRY NORMAN LEASK, OF EGREMONT, ENGLAND.

MEANS FOR REG'ULATING THE FEED TO REFUSE-DESTRUCTOR AND OTHER FURNACES.

Specification of Letters Patent.

Patented July 27, 11915.

Application filed December 30, 1910. Serial No. 600,010.

nace in which a hopper container or skip either stationary or removablecontaining the refuse or other fuel to be fed to the furnace is arrangedover the furnace and provided with a door or doors at the bottom of thehopper or container adapted respec- "tively to close the bottom of thecontainer and the furnace opening.

It consists essentially of means operated by the opening or closing ofthe door or doors between the skip hopper or container and the furnaceor from the front of the furnace whereby a spear or spears, arms, fiatdoors, or the like are adapted to project into or across the skip,hopper or container at one or more points to hold up or support therefuse or other fuel upon them therein so that practically only thatamount of refuse or fuel which is below the spears, arms, or the like isat liberty to drop into the furnace and so the amount of the charge fedto the fire can be governed, to some extent.

The invention will be fully described with reference to the accompanyingdrawings.

Figure 1. is a sectional side view showing a spear or spears operated bythe opening of the furnace door. Fig. 2. is a similar view showingmodified arrangement for operating spears by opening the furnace orcontainer doors. Fig. 3. is a sectional end view of the structure shownby Fig. 2.

As shown in Fig. 1 and Figs. 2 and 3 the invention is applied tofurnaces provided with charging doors. In Fig. 1. the furnace door Awhich is constructed independently of the container door B is carried onwheels a running on runways a adapted to raise the door A when it ismoved away from the closed position by any convenient means as forinstance by a chain as shown. The runways a or the tracks for thefurnace door A are not continuous, the one set of tracks or runways forengagement by the wheels (I.

at the right end of the furnace door, for instance, as shown by Fig. 2,terminating as indicated by dotted lines in Fig. 2 in advance of thesecond set of ways or tracks a engaged by the wheel or roller a at theleft end of the furnace door A, and by this means the said door A ispermitted to fully close down over the opening of the furnace as shownby Fig. 2 because the wheels or rollers a at opposite ends of the door Aoperate on the inclines at the front extremities of the tracks orrunways a, and conversely when the door is open it is uniformlyelevatedat opposite ends to clear the furnace opening and to disengageportions of the door from the water seal or sealing means. Thisconstruction is identical with that disclosed by Fig. 1, the runways ortracks being the same, as clearly indicated in full lines, and showingthat the track rails a at the left of the furnace opening terminatebelow the left ends of the similar track rails or runways extendingalong adjacent to the furnace opening for operation with the wheels atthe right end of the door. The

door .A Fig. 1 is provided with lugs a adapted to engage a correspondinglug or lugs Z) on the container door B, the said container door beingcarried on wheels 5 running on rails 6 By this means the furnace doormay be completely opened without opening the container door but thelatter may then be opened by continuing the movement of the door A inthe same direction.

On one side of the container C is mounted suitable brackets a carrying abell-crank lever D fulcrumed at c. To the bell-crank lever D is pivotedat the upper end a prong or spear or prongs or spears E adapted to beforced into the container by the operation of the lever D. For thispurpose the eX- ternal end 6 of the spear or spears is constructed so asto slide in a guide or guides F attached to the container and havingpivot connection with the lever D, said pivot connection being adaptedto slide in a slot d formed in the lever to permit the latter to swingon its fulcrum 0 associated with the bracket 0. The lower extremity ofthe bellcrank lever D is preferably provided with a runner d adapted tobe engaged and raised by the furnace door A into the position shown byFig. 1 when door A is raised by being moved forward from its seat. Whenthe door A raises the runner d the bellcrank lever D is caused to moveabout its fulcrum 0 and the spear or spears E are at the same time movedinto the container C so that when the container door B is opened thematerial in the container above the spear or spears E will not'fall intothe furnace. The door A carries a rail a or extension by which therunner cl is held up after the door has moved from under it. The door Ais also provided with a lug 0t" adapted to engage the runner d at theend of the return travel of the door after the container door B has beenclosed. The engagementof the lug a with the lever 03" and the containerdoor are moved together;

This movement may be accomplished by means of a hydraulic ram as shownor by any other suitable means. In this arrange-' ment the lever D ispivotally mounted on a bracket attached to the container 0 and isprovided with or carries a depending portion adapted to engage with acam or inclined face G carried on the container door B. The upper end ofthe lever D is provided with a slot for the reception of the end of thespear E. A second spear E is mounted on the opposite side of thecontainer and is connected to a lever D pivoted to a bracket carried onthe container. This lever D is provided with a depending portionpivotally connected by a link H to an upwardly extending member a'lfixedto or adapted to move with the first lever D.

- In operation, when the furnace door A and the container door B aremoved the spear E to be forced into the container to hold up any fuelabove it. A similar movement is given to the spear E on the other sideof the container from the link H and second lever D. A stop 9 is carriedon the container door to engage the depending portion of the lever D andreturn it together with the spears to the original position, when thefurnace door and the container door are again closed.

WVhat I claim as my invention and desire to protect by Letters Patentis 1. In a refuse destructor, the combination of a furnace having anupper feed opening, a container above and having its lower extremityover the said furnace feed opening, door means between the lowerextremity of the container and the furnace opening and mounted to slideover and away from said opening and under and outwardly from beneath thelower extremity of the container, and dividing means movably operatingto project into and to be drawn outwardly from the interior of thecontainer and having actuating devices separate from and in part engagedby opposite portions of the door means to automatically and correctlyposition the said dividing means relatively to the position of the doormeans.

2. In refuse destructors and other furnaces, the combination of afurnace with an upper inlet, a container over the furnace adapted toreceive and feed to the said furnace and having a movable door, a doorfor the furnace inlet, devices engaging and projectable into thecontainer to separate the fuel in the latter into charges, and meansalso associated with said devices and engageable by one of the saiddoors for operating the devices.

In testimony whereof I have hereunto set my hand in presence of thesubscribing witnesses.

HENRY NORMAN LEASK.

Witnesses:

. J OHN VVI'LLIAM THOMAS, MALCOLM SMn'rHURsT, I. OWEN OBRIEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

